Hydroelectric Information for Columbia and Snake River Projects

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Rocky Reach Dam - General Information

Dam: Rocky Reach Dam. Columbia River. River Mile 473.7

Constructed: 1961 (units 1-4); additional units completed 1971

Owner: Chelan County PUD No. 1

Normal Full Pool: 707.0 feet

Normal Low Pool: 703.0 feet

Powerhouse Capacity:

Nameplate capacity ¹: 7 @ 117 MW, 4 @ 132 MW, 1347 MW total

Peak capacity ¹: 1287 MW total

Hydraulic capacity: 220 kcfs

Spillway: 12 gates

• Visitor Information: see Rocky Reach Visitor Center page, Chelan County PUD - click on "visitor center" in the side navigation panel
• Chelan County PUD for detailed information and history.